Catalytic methane combustion at low temperatures over YSZ-supported metal oxides: Evidence for lattice oxygen participation via the use of C18O2
نویسندگان
چکیده
Catalytic methane combustion was carried out over YSZ, Pd/YSZ and Rh/YSZ between 200 700 °C. Despite similar light-off curves for 450 °C, isotopic exchange experiments using CD4 18O2 revealed different behaviour of both supported catalysts regarding the activation reactant molecules. The use C18O2 gas shown to be more appropriate than evaluate bulk oxygen mobility in YSZ at low temperatures. gaseous CO2 with lattice atoms, which occurs via surface hydrogen carbonate intermediate species, allowed demonstrate contribution atoms
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ژورنال
عنوان ژورنال: Catalysis Communications
سال: 2023
ISSN: ['1566-7367', '1873-3905']
DOI: https://doi.org/10.1016/j.catcom.2023.106704